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May'lZ, 1931. .LIBEHLE ET AL l 1,804,854

PRESS Box LATCH f Filed Aug. 15. 1928 ln/ventola Joseph Bch/e Thomas V\/. Aven Hugo Lmncrrf'z.

Patented May 12, 193i ons To THE MUBR-AYKCOMPANY, ori-DALLAS, 'TnxAsgA coRronATIoNjor TEXAS y Pnnss :Box LATCH' Application ined August 13,1928; vserial No. 299,314. K

This invention relatesto new and useful improvements in press box'latches.

lOne object of Vthe invention is to provide an vautomatic vlatch for holding'a pres'sbox againstrotation and for centering the box under vthe platen.

Another object of the invention is to provide alatc'h keeper capable of adjustments for compensating 'the variations inthe elevation, .tiltingVv or rotation of the platform and box. i I 'A` further object of thefinventionV is to provide a latch that will vbe simple and economicalto construct and which will comprise' a few number of parts; and also one which may belocked out of'operative vposi.- tion, `'thus permitting a Vfree rotation of the platform. l A .construction designed to carry out the invention will be hereinafter described,to

gether with'other lfeaturesofy the invention.

'Theinventionwill be kmore readily understood Afrom a reading of the following specification and by reference tothe accompanying drawings, in which an example ofthe invention is shown, and wherein:

t Fig. l isan elevation of a latch constructed 4accordance with the invention, the keeper nbeing'omitted, f y

Fig. 2 is iside elevation ofa portion of a press box and yframe,,equipped with such a latch ,and keeper,

. Fig. .3 a'frontelevation of the keeper,

Fig. 4 is aplan view of the same,

Fig. 5 is a longitudinal sectional view taken on the line 5 5 of Fig. 4,

Fig. 6 is a transverse sectional view taken on the line 6 6 of Fig. 4, and

Fig. 7 is aplan view of the supporting bracket.

In the drawings the numeral 10designates a bracket for support which is preferably, but not necessarily, cast integral with the end channel bar 1l of a press box l2 and located intermediate the ends thereof. This bracket includes -a countersunk fiat top or shelf 10 directed outwardly from the bar 1l and braced ateach end by vertical webs 10a. Onthe shelf l0 of this bracket is mounted 4whereby thelatch a horizontal `keeper plate 13 which extends Voutwardly from the end, yof `.the Vpress fbox.

The keeper plate overhangs the shelf and has a `central notch 14, while its ends are rounded at l5. On the frame upright '1,6 :is ymounted a latch Yhanger lhaving a back plate y18 provided with vertical slots 19. Stud bolts 20 extending through theslots are Vscrewed into the inner vsideof lthe np-r right, whereby f the plate `is held ,securely against the upright and vertical yadjustment of the hanger isthus obtained. v

The hanger also includes -a` pair of out wardl-y directed ears :21.y extendingl fromv the back plate .and braced by webs 22, Asaid ears. ,Si ,overhangng vthe keeper plate 1,3. An inverted bell-crank la-tch lever 23 is pivoted between.. the ea-rs on a .boltl24, whereby onev leg of the .lever depends'verticallybetween the front portions of the -ears and theother leg extends inwardly towardvuprights at .the tops ofthe ears. f ,A j

The depending leg ofthe lever .is vforced outwardly by a coiled spring 25 .confined between the ears. The lower endof thelever rhangs below thel hanger and is reduced so as `to more readily engage in the lnotchjl4.' A handle bar 26 is loosely journaled on .astud 277x011 the inner sidejof the upright and is pivotally connected to the upper .end Vofa rod 28 pivoted tothe endof the upperleg ofthe latch lever, so that when saidfbar is depressed the rod -will be lifted, whereby the lever 23 will beswungand withdrawn froml ,the notch 14 of the keeper.' When jso depressed, the handle barmaybe engaged under a lug 29 on` the edge of the upright.

Y When the handle bar Ais released from the lug 29 the spring will swing 'thelatc'h llever into the path of the ykeeper plate. V'Thu-s when the boxy 12 is rotatedone of the `corners Ll5 will engage the lower end of the llever and slightly depress the same, so 'that the edge of the plate will iride along :the

lever until the latter drops into the notch-` Y V14 and locks :the box in position. When it is desired to rotatethe box, thehandle ,bar 26 is depressed and engaged under the lug, 23 vis withdrawn from Vthe notch 14. Y l l JOSEPH BEHLE,y ITHOMAS WAVEN, .ann HUGO LINNARTZ. .or DALLAS, TEXAS, ASSIGN- made freely adjustable in a horizontal plane on the shelf. Lugs 33 depending from the ends of the plate 13 carry set screws 34 engaging webs 10a, whereby the plate may be shifted longitudinally, when the bolts 32 are loosened, and also whereby the plate may be fastened against longitudinal move ment. Y

The shelf 10 has a plurality of set screws 36 bearing againstthe bottom of the plate 13 and capable of adjustment for raising or lowering the plate. VThis vertical adjust- 'ment coupled with the vertical adjustment of the hanger 17 enables the parts to be set so that the keeper plate will swing under the hanger in close relation thereto, but without binding.v 'The adjustments of the plate permit its location at such a position as to center the box under the platen bars, when ythe lever 23 engages in the notch 14e. Various changes in the size and shape of the different parts, as well as modifications and` alterations, may be made within the scope of the appended claims.

What we claim is:

1. In a press box 'latch device, a keeper for mounting on a press box, means f or adjusting the keeper to compensate variations in the position of the box, and a latch for mounting on the press frame in the path of the keeper. l j

2. In a press box latch device, a keeper for mounting on aV press box, a hanger for mounting on a press frame and including a-pair of ears, a bell-crank latch lever piv oted between said ears of the hanger, a coiled spring on the hanger engaging the lever, a handle bar, and a connection between the lever' and the bar.

3. In a press box latch'device, a bracket for mounting on a press box, a keeper plate mounted on the bracket and having a notch, means for adjusting the plate in two directions, and a spring pressed latch lever for mounting on a press frame and engaging the notch of the plate.

4. In a press box latch, a latch lever, a bracket for mounting on a press box and including a shelfa keeper plate having a notch in its front edge for receiving the latch lever, and means for adjustably securing the plate on said shelf, whereby said plate may be shifted in vertical and hori zontal directions.

5. The combination with the end of a press box and vthe upright of a press frame, of a support mounted on the end of the press box, a keeper member mounted on the support and projecting outwardly from the end of the box, a hanger on the inner side of the frame upright, a latch carried by the hanger in position to engage the keeper, and means for operating the latch.

6. The combination with the end of a press box and the upright of a press frame, of a support mounted on the end of the press box, keeper member mounted on the support and projecting outwardly from the end of the box, a hanger on the inner side of the frame upright, a latch carried by the hanger in position to engage the keeper, a lever pivoted on the frame upright, and an operating connection between the lever and the latch.

7. In a press box latch device, a latch having means for adjustably mountingit on a press frame, means for operating the latch., and a keeper having means for adjustably mounting it on the end of a press box in the path of the latch.

8. In a press box latch device, a keeper for mounting on the end of a swinging press box, a hanger for mounting on the press frame, a latch lever pivoted on the hanger in position to engage the keeper to hold the box against swinging, a spring for urging the latch lever into engagement with the keeper, means for withdrawing the lever from the keeper, and means for locking the lever out of engagement with the keeper, whereby the press box may be freely swung.

9. In a press box latch device, a mounting for the end of a swinging press box, a keeper shiftable on the mounting laterally of the press box, and a latch for mounting on the press frame for engaging the keeper. In testimony whereof we aflix our signatures.

JOSEPH BEHLE. THOS. W. AVEN. HUGO LINNARTZ.

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